<template>
  <el-dialog v-model="dialogVisible" :title="titleMap[type - 1]" :width="type == 1 ? 680 : 460" destroy-on-close append-to-body @closed="$emit('closed')">
    <template v-if="type === 1">
      <div class="sc-user-select">
        <div class="sc-user-select__left">
          <div class="sc-user-select__search">
            <el-input v-model="keyword" prefix-icon="el-icon-search" placeholder="搜索成员">
              <template #append>
                <el-button icon="el-icon-search" @click="search"></el-button>
              </template>
            </el-input>
          </div>
          <div class="sc-user-select__select">
            <div v-loading="showGrouploading" class="sc-user-select__tree">
              <el-scrollbar>
                <el-tree ref="groupTree" class="menu" :data="group" :node-key="groupProps.key" :props="groupProps" highlight-current :expand-on-click-node="false" :current-node-key="groupId" @node-click="groupClick" />
              </el-scrollbar>
            </div>
            <div v-loading="showUserloading" class="sc-user-select__user">
              <div class="sc-user-select__user__list">
                <el-scrollbar ref="userScrollbar">
                  <el-tree ref="userTree" class="menu" :data="user" :node-key="userProps.key" :props="userProps" :default-checked-keys="selectedIds" show-checkbox check-on-click-node @check-change="userClick"></el-tree>
                </el-scrollbar>
              </div>
              <footer>
                <el-pagination v-model:currentPage="currentPage" background layout="prev,next" small :total="total" :page-size="pageSize" @current-change="paginationChange"></el-pagination>
              </footer>
            </div>
          </div>
        </div>
        <div class="sc-user-select__toicon">
          <el-icon><el-icon-arrow-right /></el-icon>
        </div>
        <div class="sc-user-select__selected">
          <header>已选 ({{ selected.length }})</header>
          <ul>
            <el-scrollbar>
              <li v-for="(item, index) in selected" :key="item.id">
                <span class="name">
                  <el-avatar size="small">{{ item.name.substring(0, 1) }}</el-avatar>
                  <label>{{ item.name }}</label>
                </span>
                <span class="delete">
                  <el-button type="danger" icon="el-icon-delete" circle size="small" @click="deleteSelected(index)"></el-button>
                </span>
              </li>
            </el-scrollbar>
          </ul>
        </div>
      </div>
    </template>

    <template v-if="type === 2">
      <div class="sc-user-select sc-user-select-role">
        <div class="sc-user-select__left">
          <div class="sc-user-select__select">
            <div v-loading="showGrouploading" class="sc-user-select__tree">
              <el-scrollbar>
                <el-tree ref="groupTree" class="menu" :data="role" :node-key="roleProps.key" :props="roleProps" show-checkbox check-strictly check-on-click-node :expand-on-click-node="false" :default-checked-keys="selectedIds" @check-change="roleClick" />
              </el-scrollbar>
            </div>
          </div>
        </div>
        <div class="sc-user-select__toicon">
          <el-icon><el-icon-arrow-right /></el-icon>
        </div>
        <div class="sc-user-select__selected">
          <header>已选 ({{ selected.length }})</header>
          <ul>
            <el-scrollbar>
              <li v-for="(item, index) in selected" :key="item.id">
                <span class="name">
                  <label>{{ item.name }}</label>
                </span>
                <span class="delete">
                  <el-button type="danger" icon="el-icon-delete" circle size="small" @click="deleteSelected(index)"></el-button>
                </span>
              </li>
            </el-scrollbar>
          </ul>
        </div>
      </div>
    </template>

    <template #footer>
      <el-button @click="dialogVisible = false">取 消</el-button>
      <el-button type="primary" @click="save">确 认</el-button>
    </template>
  </el-dialog>
</template>

<script>
import config from '@/config/workflow'

export default {
  props: {
    modelValue: { type: Boolean, default: false },
  },
  data() {
    return {
      groupProps: config.group.props,
      userProps: config.user.props,
      roleProps: config.role.props,

      titleMap: ['人员选择', '角色选择'],
      dialogVisible: false,
      showGrouploading: false,
      showUserloading: false,
      keyword: '',
      groupId: '',
      pageSize: config.user.pageSize,
      total: 0,
      currentPage: 1,
      group: [],
      user: [],
      role: [],
      type: 1,
      selected: [],
      value: [],
    }
  },
  computed: {
    selectedIds() {
      return this.selected.map((t) => t.id)
    },
  },
  mounted() {},
  methods: {
    //打开赋值
    open(type, data) {
      this.type = type
      this.value = data || []
      this.selected = JSON.parse(JSON.stringify(data || []))
      this.dialogVisible = true

      if (this.type === 1) {
        this.getGroup()
        this.getUser()
      } else if (this.type === 2) {
        this.getRole()
      }
    },
    //获取组织
    async getGroup() {
      this.showGrouploading = true
      var res = await config.group.apiObj.get()
      this.showGrouploading = false
      var allNode = {
        [config.group.props.key]: '',
        [config.group.props.label]: '所有',
      }
      res.data.unshift(allNode)
      this.group = config.group.parseData(res).rows
    },
    //获取用户
    async getUser() {
      this.showUserloading = true
      var params = {
        [config.user.request.keyword]: this.keyword || null,
        [config.user.request.groupId]: this.groupId || null,
        [config.user.request.page]: this.currentPage,
        [config.user.request.pageSize]: this.pageSize,
      }
      var res = await config.user.apiObj.get(params)
      this.showUserloading = false
      this.user = config.user.parseData(res).rows
      this.total = config.user.parseData(res).total || 0
      this.$refs.userScrollbar.setScrollTop(0)
    },
    //获取角色
    async getRole() {
      this.showGrouploading = true
      var res = await config.role.apiObj.get()
      this.showGrouploading = false
      this.role = config.role.parseData(res).rows
    },
    //组织点击
    groupClick(data) {
      this.keyword = ''
      this.currentPage = 1
      this.groupId = data[config.group.props.key]
      this.getUser()
    },
    //用户点击
    userClick(data, checked) {
      if (checked) {
        this.selected.push({
          id: data[config.user.props.key],
          name: data[config.user.props.label],
        })
      } else {
        this.selected = this.selected.filter((item) => item.id !== data[config.user.props.key])
      }
    },
    //用户分页点击
    paginationChange() {
      this.getUser()
    },
    //用户搜索
    search() {
      this.groupId = ''
      this.$refs.groupTree.setCurrentKey(this.groupId)
      this.currentPage = 1
      this.getUser()
    },
    //删除已选
    deleteSelected(index) {
      this.selected.splice(index, 1)
      if (this.type === 1) {
        this.$refs.userTree.setCheckedKeys(this.selectedIds)
      } else if (this.type === 2) {
        this.$refs.groupTree.setCheckedKeys(this.selectedIds)
      }
    },
    //角色点击
    roleClick(data, checked) {
      if (checked) {
        this.selected.push({
          id: data[config.role.props.key],
          name: data[config.role.props.label],
        })
      } else {
        this.selected = this.selected.filter((item) => item.id !== data[config.role.props.key])
      }
    },
    //提交保存
    save() {
      this.value.splice(0, this.value.length)
      this.selected.map((item) => {
        this.value.push(item)
      })
      this.dialogVisible = false
    },
  },
}
</script>

<style scoped>
.sc-user-select {
  display: flex;
}

.sc-user-select__left {
  width: 400px;
}

.sc-user-select__right {
  flex: 1;
}

.sc-user-select__search {
  padding-bottom: 10px;
}

.sc-user-select__select {
  display: flex;
  border: 1px solid var(--el-border-color-light);
  background: var(--el-color-white);
}

.sc-user-select__tree {
  width: 200px;
  height: 300px;
  border-right: 1px solid var(--el-border-color-light);
}

.sc-user-select__user {
  width: 200px;
  height: 300px;
  display: flex;
  flex-direction: column;
}

.sc-user-select__user__list {
  flex: 1;
  overflow: auto;
}

.sc-user-select__user footer {
  height: 36px;
  padding-top: 5px;
  border-top: 1px solid var(--el-border-color-light);
}

.sc-user-select__toicon {
  display: flex;
  justify-content: center;
  align-items: center;
  margin: 0 10px;
}

.sc-user-select__toicon i {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #ccc;
  width: 20px;
  height: 20px;
  text-align: center;
  line-height: 20px;
  border-radius: 50%;
  color: #fff;
}

.sc-user-select__selected {
  height: 345px;
  width: 200px;
  border: 1px solid var(--el-border-color-light);
  background: var(--el-color-white);
}

.sc-user-select__selected header {
  height: 43px;
  line-height: 43px;
  border-bottom: 1px solid var(--el-border-color-light);
  padding: 0 15px;
  font-size: 12px;
}

.sc-user-select__selected ul {
  height: 300px;
  overflow: auto;
}

.sc-user-select__selected li {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 5px 5px 5px 15px;
  height: 38px;
}

.sc-user-select__selected li .name {
  display: flex;
  align-items: center;
}

.sc-user-select__selected li .name .el-avatar {
  background: #409eff;
  margin-right: 10px;
}

.sc-user-select__selected li .delete {
  display: none;
}

.sc-user-select__selected li:hover {
  background: var(--el-color-primary-light-9);
}

.sc-user-select__selected li:hover .delete {
  display: inline-block;
}

.sc-user-select-role .sc-user-select__left {
  width: 200px;
}

.sc-user-select-role .sc-user-select__tree {
  border: none;
  height: 343px;
}

[data-theme='dark'] .sc-user-select__selected li:hover {
  background: rgba(0, 0, 0, 0.2);
}

[data-theme='dark'] .sc-user-select__toicon i {
  background: #383838;
}
</style>
